Area and Cir

What is the area of the triangle?

• 2.5 square units

• 3 square units

• 3.5 square units

• 4 square units

Find the area.

• 60 in

• 60 in²

• 50 in

• 50 in² 

• 87.12 cm²
• 78.65 cm²
• 242 cm²
• 157.3 cm²

If my diameter is 19 inches, what is my radius?

• 38 inches

• 9.5 inches

• 59.66 inches

• 119.32 inches

Alex found the area of this circle. What mistakes did he make?

• He did not do 3 to the power of 2. (No hizo 3 elevado a 2.)

• He used the wrong number for pi. (Usó el número equivocado para pi)

• He multiplied 3 times 2 wrong (Multiplicó 3 veces 2 incorrectamente)

What is the area of a circle with a radius of 1?
¿Cuál es el área de un círculo con un radio de 1?