Answer:-21
Step-by-step explanation:
3•(-7)
3 x -7=-21
Step-by-step explanation:
perimeter=4×6-1/4 ×2π×3=24-1/2×3.14×3=24-4.71=19.29cm
These are the steps. Just follow the numbers on the left hand side. Hopes this helps. The answer is -3.
Answer: 56:7
Step-by-step explanation:
You would do 8 times 7 which is 56 and yor ratio would be 56:7
First, we find the area of the circle.
A = pi * r^2
A = pi * (1 cm)^2
A = pi cm^2
The area of the circle is pi cm^2.
The area of the triangle is also pi cm^2.
Now we use the area of a triangle.
A = (1/2)bh
(1/2)bh = A
(1/2)(3 cm)h = pi cm^2
(3 cm)h = 2pi cm^2
h = (2/3)pi cm
The exact height is
If you want an approximate height, then it is 2.09 cm.