You can find the measure of any of the three sides, by knowing the measure of one side in the triangle. The hypotenuse is equal to twice the length of the shorter leg, which is the side across from the 30 degree angle.
C. boundaries convergent plate
A convergent boundary is formed when two tectonic plates slide towards each other and collide. This forms a mountain.
Answer:
approximately 5.1 million years ago
Explanation:
The part of China that is mostly grassland and dessert is Inner Mongolia
The correct answer is Australia;
Australia is somewhat famous for thriving in opal mining.
Hope I could help, and good luck!
~Vinny:)