Question

What is the perimeter and area of the given triangle?
8 feet, 7.5 square feet
15 feet, 39 square feet
12.5 feet, 39 square feet
15 feet, 7.5 square feet

Answer 1

@aloud

Answer 2

C but im not sure

Answer 3

perimeter means to add up all the lengths (sides) of the triangle... so find the total of all the sides.

Area of a triangle = 1/2 * base * height
Looking at your diagram, the base = 6 and height = 2.5
Plug base = 6 and height = 2.5 into the area of a triangle formula and we get:

Area of triangle = 1/2 * 6 * 2.5 = ?

Answer 4

ight hold on

Answer 5

ok

Answer 6

7.5 is what i got

Answer 7

yes 7.5 is your area of the triangle :)
Did you find the perimeter yet?

Answer 8

naa

Answer 9

well... perimeter = total of all the lengths.
So add all three sides and what do you get?

Answer 10

15

Answer 11

awesome :) good job.

Answer 12

thank you

Answer 13

no problem :)