8
round each number to the nearest 10, then
640 ÷ 80 = 8 ← estimate
Since it is given that the triangle is a right angle, and one of the other angles is 30 degrees, then we know that this triangle is a 30, 60, 90 triangle. In a 30, 60, 90 triangle, the opposite side of the shortest angle is half of the hypotenuse (which is given as 6). So knowing this, the value of y would be D. 3.
Answer:
4pi r
Step-by-step explanation:
Answer:
5(4 + 4)
Step-by-step explanation:
5(4 + 4)
20 + 20
40
Hope this helps!
=)
