B
The sum of Interior Angles is 180 degrees
Step-by-step explanation:
To find the area of a triangle where you know the x and y coordinates of the three vertices, you'll need to use the coordinate geometry formula: area = the absolute value of Ax(By - Cy) + Bx(Cy - Ay) + Cx(Ay - By) divided by 2. This can help you do it.
Answer:
bc = 5.8cm , A and B are :
Step-by-step explanation:
5²+3²
25+9
√(34
=5.8cm
A and B=( 180°-90°):2=45°
