TU.
To all do
An equilateral triangle has a semiperimeter of 6 meters
What is the area of the triangle? Round to the nearest
square meter
O2 square meters
7 square meters
20 square meters
78 square meters
Semiperimeter = 6 m
Heron's formula: Area = 5(5 - 0)(5 - b)(5 - C)

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.