plz help plz help me plz help me plz help me I don't want to get grounded the whole summer the question is. the window has the shape of a kite how many square meters of glass were used to make the window? ​

648 cm ²

Step-by-step explanation:

Lets solve each triangle 1-by-1.

Note that the area of a triangle is: · l · h

· 18 · 15 = 135 cm

· 18 · 15 = 135 cm

135 + 135 = 270 cm

· 21 · 18 = 189 cm

· 21 · 18 = 189 cm

189 + 189 = 378 cm

378 + 270 = 648 cm ²

true

explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls