Respuesta :
Answer:circumference is C=pie × radius
area of triangle is (b×h)÷2
area of a trapezoid is a=(b1+b2)×h)÷2
Step-by-step explanation:
Answer:circumference is C=pie × radius
area of triangle is (b×h)÷2
area of a trapezoid is a=(b1+b2)×h)÷2
Step-by-step explanation: