I don’t know but Good luck
1:2
because red:black = 10:20 and simplifies to 1:2
Answer: 280 cm
Step-by-step explanation:
The base of each of the congruent triangles ABD and CBD is BD= 28 cm. The height of each is the perpendicular 10cm.
A=(2)(bh/2) works out to A= bh since the 2/2 cancel
So 10cm × 28cm = 280cm²
You going to have to find the slope of the x intercepts