Question

Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units.

What is the value of t?

A. 2

B. 3

C. 6

D. 8​

Answer 1

9514 1404 393

Answer:

A. 2

Explanation:

The perimeter is the sum of the side lengths:

48 = (3t +3t) +(4t +4t) +(7t +6)

42 = 21t . . . . . . . . . . . . . . . . . . . collect terms, subtract 6

2 = t . . . . . . . . divide by 21