3(2 + 4) = 60 5 + 1 = 8 − 23 can someone help me please
2 answers:
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Method 1:
You can use the formula of an area of equilateral triangle:
a - length of side
We have a = 10 yd. Substitute:
Method 2:
Use the Pythagorean theorem (look at he picture).
<em>subtract 25 from both sides</em>
The formula of an area of a trinagle:
b - base
h - height
We have b = 10 yd and h = 5√3 yd. Substitute:
