Question

plz write answer these question​

Answer 1

Answer:

1. answer is 6

2. answer is 28

3. answer is acute angle

4. line

Answer 2

Answer:

1. 14
2. 28
3. reflex angle
4. closed figure

Step-by-step explanation:

1. n(n+1)(2n+1)/6

3×(3+1)({2×3}+1)÷6

3×4×7÷6

4×7÷2

2×7

14

2. 4/5=@/35

4/5×35=@

4×7=@

28=@

3. An angle whose measure is equal to 90° is called a right angle. A 180° angle is called a straight angle. Angles such as 270 degrees which are more than 180 but less than 360 degrees are called reflex angles. A 360° angle is called a complete angle.

4. The figure which ends with the starting point is called a closed figure.

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