Question

URGENT 30 POINTS!!!
Which is the area, A, of this triangle, using the formula A=12ab⋅sin(C)?

Answer 1

Answer:

A = 1/2 *14*21 sin 88

A =146.910 in^2

Step-by-step explanation:

A=12ab⋅sin(C)

We know a = 14 and b =21

We need to find c

A +B + C = 180

50+42 +C = 180

92+C = 180

C =88

A = 1/2 *14*21 sin 88

A =146.910

Answer 2

Answer:

It's A :)

Step-by-step explanation: