The formula for the area of a triangle is base*height/2. So lets input the number.
15*40=600/2=300 cm2
If your still using number blocks then it is 20 ones but if its just addition or so it is just 20
ten tens are one hundred and then they both have 4 tens or forty
Idk if this will help, but her :)
Answer:
w = 21
Step-by-step explanation:
i've done this kind of thing before a million times
