Triangle PQR has sides measuring 9 feet and 10 feet and a perimeter of 24 feet. What is the area of triangle PQR? Round to the n

Question

3 years ago

14

earest square foot. Heron's formula: Area 6 square feet 7 square feet 19 square feet 22 square feet

2 answers:

gregori [183] · Answer 1 · 2022-03-23T07:33:46+03:00

8 0

Answer: 22 square feet

Step-by-step explanation:

Using Heon's formula, the are can be found with:

$= \sqrt{s(s - a)(s - b)(s - c)}$

Where s is half the perimeter

a, b and c are sides

Perimeter = a + b +c

24 = 9 + 10 + c

c = 24 - 9 - 10

c = 5 feet

s = 24 / 2 = 12

Area

$= \sqrt{s(s - a)(s - b)(s - c)}\\\\= \sqrt{12(12 - 9)(12 - 10)(12 - 5)}\\\\= \sqrt{12 * 3 * 2 * 7}\\\\\\= \sqrt{504} \\\\$

= 22 ft²

brilliants [131] · Answer 2 · 2022-03-23T08:34:22+03:00

brilliants [131]3 years ago

3 0

Answer:

22ft!!!

Step-by-step explanation:

jus did test review on EDGE