Answer:
139
Step-by-step explanation:
First we need to find diameter 132/3.14=42 rounded
Then we halve it to find radius 42/2=21
Formula for area is radius x radius x 3.14
21 x 21 = 441 x 3.14 = 138.74 round up is 139
Answer:
250-105 = 145
Step-by-step explanation:
5 is greater than 0 so you must regroup:
- Take 1 from 5, so 5 becomes 4.
- Add 10 to 0, so 0 becomes 10.
- 10 minus 5 is 5
- 4 minus 0 is 4
- 2 minus 1 is 1
<h3>Triangle 1 :</h3>
Classify by angle = <u>obtuse</u> (one angle in the triangle is obtuse)
Classify by sides = <u>isosceles</u> (has two equivalent sides)
<h3>Triangle 2 :</h3>
Classify by angles = <u>right</u> (an angle in the triangle is equal to 90°)
Classify by sides = <u>scalene</u> (none of the sides in this triangle is equal)
