Answer:
31.7 cm²
Step-by-step explanation:
The area (A) of the triangle is calculated as
A =
absinC
where a, b are the 2 sides given and C the angle between them
∠ C = 180° - (72 + 59)° = 180° - 131° = 49° , thus
A = 0.5 × 12 × 7 × sin49° ≈ 31.7 cm² ( to 1 dec. place )
Answer:
1,911
Step-by-step example
3 x 7
3 x 30
3 x 600
then add it all up to get the 1,911
Look at the picture. I have no idea why I can't add an answer.