question_answer 12)

Find the missing value:

Base	Height	Area of triangle
15 cm	-	\[\text{87 c}{{\text{m}}^{\text{2}}}\]
-	31.4 mm	\[\text{1256 m}{{\text{m}}^{2}}\]
22 cm	-	\[\text{170}\text{.5c}{{\text{m}}^{\text{2}}}\]

Answer:

               

Base	Height	Area of triangle
15 cm	\[\frac{\text{87  }\!\!\times\!\!\text{  2}}{\text{15}}\text{ = 11}\text{.6 cm}\]	\[\text{87 c}{{\text{m}}^{\text{2}}}\]
\[\frac{\text{1256  }\!\!\times\!\!\text{  2}}{\text{31}\text{.4}}\text{ = 80 mm}\]	31.4 mm	\[\text{1256 m}{{\text{m}}^{2}}\]
22 cm	\[\frac{\text{170}\text{.5  }\!\!\times\!\!\text{  2}}{\text{22}}\text{ = 15}\text{.5 cm}\]	\[\text{170}\text{.5c}{{\text{m}}^{\text{2}}}\].