Question

answer it please
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Answer 1

1) i) two ii) 20 iii) 5 iv) triangle has no diagnols v) 9

2) The measure of exterior angle = 360°/n = 360/10 = 36°

ii) 360/n = 360/12 = 30°

3) formula : (n-2)180/n i) (18-2)180/18 = 16 × 10 = 160°

ii) (15-2)180/n = 13 × 180/15 = 13 × 12 = 156°

4) i) 8 sides ii) 24 sides iii) 10 sides iv) 360/9 = 40 sides

5) 12 sides ii) 180 - 165 = 15 sides

i don't know the last one sorry

Answer 2

Answer:

Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption , usually at temperature from 700 to 1200 celcius . The structure resulting from subsequent solidification and cooling are also sometimes described as lava.

Step-by-step explanation:

Yo! Simran!

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