Answer:
60°
Step-by-step explanation:
Complementary angles both add up to 90°. Therefore if one angle is twice the other, then if we divide 90 by 3 then we get 30. Two parts of 30 is 60 plus the other 30 and we get 90. The individual angle is 60°and the other is 30°
Answer:
kl is a volume with sides that are equal
Answer:
7.065 m ^ 2
8.935 m ^ 2
Step-by-step explanation:
The first thing is to calculate the surface of each one, that is, the area
For the room that is square, each side measures 4m, therefore:
As = 4 * 4 = 16 m ^ 2
The area of the carpet is that of a circle, that its area is the number pi times the radius squared, we know that the radius is half the diameter, therefore r = 3/2 = 1.5 m
replacing in the area formula
Ac = pi * r ^ 2 = 3.14 * 1.5 ^ 2
Ac = 7.065 m ^ 2
In other words, the area covered by the carpet is 7,065 m ^ 2 and the area not covered would be the subtraction between the area of the room minus the area of the carpet, that is:
16 m ^ 2 - 7.065 m ^ 2 = 8.935 m ^ 2
8.935 m ^ 2 would be the area that the carpet does not subside.
Answer:
30.0%
Step-by-step explanation:
0.63×0.23=0.1449≈14.5% approx 14.5%
Therefore, 14.5% of all students at the school are girls who wear contacts.
Let's repeat this for boys by multiplying the percent of boys at the school by the percent of boys that wears contacts.
0.37×0.42=0.1554≈15.5% approx 15.5%
Therefore, 15.5% of all students at the school are boys who wear contacts.
0.145+0.155=0.3=30.0%
30.0% of all the students wear contacts.
Calculate the number of sides<span>. The interior angles are 120°, so the exterior angles are 180° - 120° = 60°. The exterior angles add up to 360°, so if we divide 360° by 60° we find there are 6 exterior angles.
Hope this helps!</span>
