Area of a triangle formula
v1.3 · 1.5 MB · code 9
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File information
UpdatedAug 3, 2017
PublishedAug 3, 2017
Packagebryabrinpavel.areaofatriangle
Versionv1.3 (9)
Size1.5 MB
MD521a9c58d56296df534c71f1d5b6a8ea3
Min SDK10
Malware scanTRUSTED
Signature SHA19A:CF:16:BB:7B:5D:FC:8E:98:34:5E:5D:EE:5F:CA:82:13:12:BC:08
SignerCN=Pavel Bryabrin, L=pos. Pervomajskij, ST=Chelyabinsk region, C=RU
Total downloads129
This version129
DeveloperPavel Bryabrin
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2017-08-03
- Scanned for malware 2020-11-22 08:26:13
- Signature SHA1 9A:CF:16:BB:7B:5D:FC:8E:98:34:5E:5D:EE:5F:CA:82:13:12:BC:08
- File MD5 21a9c58d56296df534c71f1d5b6a8ea3
How to install Area of a triangle formula v1.3 on Android API 10+
Takes about 2 minutes. You'll need roughly 1.5 MB of free storage.
- Grab bryabrinpavel.areaofatriangle_9.apk — hit the Download button above (1.5 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 21a9c58d56296df5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find bryabrinpavel.areaofatriangle_9.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Pavel Bryabrin, L=pos. Pervomajskij, ST=Chelyabinsk region, C=RU. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Area of a triangle formula — tap Open on the install screen, or find the Area of a triangle formula icon in your app drawer.
Common install errors for Area of a triangle formula
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 10 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.