Question

The side of an equilateral triangle has a length of 5.4 m. The height of the triangle is approximately 4.7 m. What are the perimeter and area of this triangle? Round your answers to the nearest tenth.

perimeter: 16.2 m; area: 12.7 m2

A. perimeter: 10.1 m; area: 16.2 m2

B. perimeter: 16.2 m; area: 10.1 m2

C. perimeter: 10.1 m; area: 12.7 m2

help me plz answer asap

Answer 1

top option

Explanation:

Since A=1/2 (b) (h) then: 5.4 x 4.7 /2=12.69 or 12.7; P= a+b+c P= 5.4 x 3 =16.2 . It is an equilateral triangle meaning all the sides are equal.

so; P= 16.2 m & A= 12.7 m2

Answer 2

The answer is B. perimeter: 16.2; area 10.1 m2