Answer:
25
Step-by-step explanation:
180-90-65 = 25
Opposite angles are same
−3b+2.5=4
Subtract 2.5 from both sides.
−3b+2.5−2.5=4−2.5
−3b=1.5
Divide both sides by -3.
−3b/−3 = 1.5/−3
b=−0.5
Sorry I’m not sure but maybe you could look it up???
Answer:
314 cm²
Step-by-step explanation:
To find the area of a circle, use the formula A = πr² by substituting r = 10.
A = πr² = π10² = 314 cm²
We would need to know how many students are in the class to properly answer the question.