To find the area of a triangle, use the formula a=(1/2)bh. a = area b = base h = height So using the measurements in the picture... b = 7.9 h = 5.9 Now using the measurement ^ to fill in the formula. a=(1/2) 7.9 * 5.9 Now multiply the numbers to find a. a=(1/2) 7.9 * 5.9 a= 3.95 * 5.9 a = 23.305 The area is 23.305 mm.
To find the perimeter, add up all the sides. 7.9 + 5.9 + 9.86 13.8 + 9.86 23.66 The perimeter is 23.66 mm.
The type of triangle is a right triangle because one of the angles is a right angle (90 degrees).
<h3>Step-by-step explanation: for #2, look at 6 3/4 and make it into a decimal. Do the same to 7 1/2. Compare them both to see which one is shorter by subtracting 6 3/4 from 7 1/2 and when you get your answer for that, make that into a fraction. Predict that 6 3/4 is shorter because of how much less it is compared to 7 1/2. (I hope I helped you in some way. Good luck!)</h3>
