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Thepotemich [5.8K]
3 years ago
11

Length 21cm area 315cm2 find the breath ​

Mathematics
2 answers:
masya89 [10]3 years ago
5 0

<h2 />

___________________________________

<h2>Symbols of:</h2>

\quad\quad\quad\quad\tt{A  =  A rea}

\quad\quad\quad\quad\tt{ l = length}

\quad\quad\quad\quad\tt{ b \:  = breadth}

<h3 /><h3>Given that:</h3>

\quad\quad\quad\quad\tt{A  =  315 {cm}^{2} }

\quad\quad\quad\quad\tt{l  =  21cm}

\quad\quad\quad\quad\tt{b  =   \: ? }

<h3>Formula for breadth (b):</h3>

\quad\quad\quad\quad\tt{breadth  = \frac{Area}{length} }

<h3>Solution:</h3>

\quad\quad\quad\quad\tt{b = \frac{315 {cm}^{2} }{21cm} }

<h3>\quad\quad\quad\tt{\:\:b = {15cm}}</h3><h3>So, the breadth (b) is:</h3>

\quad\quad\quad\quad\tt \boxed{ \boxed{  \color{magenta}{b = 15cm }}}

___________________________________

#CarryOnLearning

✍︎ C.Rose❀

Ronch [10]3 years ago
4 0

Answer:

Breadth = 15 cm

Step-by-step explanation:

Area = length x breadth

315 = 21 x breadth

\frac{315}{21} = \frac{21}{21} \times breadth                 [ dividing both sides by 21 ]

15 = 1 \times breadth\\\\breadth = 15 \ cm

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