Answer:
Granite
Explanation:
Obsidian is an extrusive rock, as it is formed on the surface of the Earth from lava, which is magma that has emerged from underground. However, granite is intrusive since it is formed from magma that cools and solidifies within the crust of the planet.
Answer:
A
Explanation:
Maybe i asked a old person
Answer:
x = 15
Explanation:
As we can see it is an isosceles triangle so
The perpendicular line joining the vertex and base of isosceles triangle bisects the base. so
Taking the triangle of right side
hypotenuse (h) = 25 inches
base (b) = 20 inches
perpendicular (p) = x = ?
We know by using Pythagoras theorem
p= √h² - b²
x = √ 25² - 20²
= √ 225
x =15
Hope it will help :)