Answer:
x=-4.36
Step-by-step explanation:
Answer:
452.16 cm²
Step-by-step explanation:
3.14 × 12² = 452.16 cm²
The little square in the top left corner means it is a right angle which equals 90 degrees.
The bottom angle is given as 56.7 degrees.
The three inside angles of a triangle need to equal 180 degrees.
The missing angle = 180 - 90 - 56.7 = 33.3 degrees