CAN SOMEONE PLEASE HELP ME WITH THIS ITS DUE TODAY I WILL BRAINLIEST WHO WVER TELLS ME THE ANSWERS TO THIS

Need solving this second acceleration problem.

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

The first triangle is dilated to form the second triangle. select true or false for each statement. statement true false the scale factor is 0.625. the scale factor is 1.6. a right triangle with a side length of .5. an arrow points to a larger right triangle with a side length of .8