Answer
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P = 54
s = 27
A = 18
s = 27
A = 18
↓Steps Explained:↓
Given an equilateral triangle with side (a) equal to 18
Calculate the other relevant items in this triangle
Calculate Perimeter:
P = 3a
P = 3 x 18
P = 54
Calculate Semiperimeter s:
| s = | P |
| 2 |
| s = | 54 |
| 2 |
s = 27
Calculate Area (A):
| A = | a2√3 |
| 4 |
| A = | 182√3 |
| 4 |
| A = | 324√3 |
| 4 |
| A = | 561.18446165232 |
| 4 |
A = 140.29611541308
Calculate Bisector
| ha-ma-ta = | a√3 |
| 2 |
| ha-ma-ta = | 31.17691453624 |
| 2 |
ha-ma-ta = 15.58845726812
Calc. Circumscribed Circle Radius
| R = | a√3 |
| 3 |
| R = | 31.17691453624 |
| 3 |
R = 10.392304845413
Calculate Inscribed Circle Radius
| r = | a√3 |
| 6 |
| r = | 31.17691453624 |
| 6 |
r = 5.1961524227066
P = 54s = 27
A = 18
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