Answer:
1.) 4 cm²
2.) 12 m²
3.) 14 cm
4.) 6 cm
5.) 51 dm²
Step-by-step explanation:
1.) A = [tex]\frac{bxh}{2}[/tex]
=[tex]\frac{(4)(2)}{2}[/tex]
=[tex]\frac{8}{2}[/tex]
=4 cm²
2.) A = [tex]\frac{bxh}{2}[/tex]
=[tex]\frac{(6)(4)}{2}[/tex]
=[tex]\frac{24}{2}[/tex]
=12 m²
3.) h = [tex]\frac{A}{b}[/tex]×2
=[tex]\frac{84}{12}[/tex]×2
=7×2
=14 cm
4.) b = [tex]\frac{A}{h}[/tex]×2
=[tex]\frac{36}{12}[/tex]×2
=3×2
= 6 cm
5.) A = [tex]\frac{bxh}{2}[/tex]
=[tex]\frac{(34)(3)}{2}[/tex]
=[tex]\frac{102}{2}[/tex]
=51 dm²
