ind the area of the 5 cm 6 cm 2 cm 2 cm 1 cm 1 cm​

Question

ind the area of the
5 cm
6 cm
2 cm
2 cm
1 cm
1 cm​

in progress 0
Mary 5 days 2021-11-19T13:59:38+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-11-19T14:01:25+00:00

    Answer:

    MATHS

    Find the area of triangle whose sides are 5 cm, 12 cm and 13 cm. Also, find the length of its altitude corresponding to the longest side.

    Share

    Study later

    ANSWER

    Given, sides of triangle 5 cm, 12 cm, 13 cm.

    Now semi perimeter, s= =

    2

    sum of the sides of triangle

    =

    2

    5+12+13

    =15 cm

    Using heron’s formula, Area of triangle=

    s(s−a)(s−b)(s−c)

    =

    15(15−5)(15−12)(15−13)

    =

    15×10×3×2

    =30cm

    2

    Using altitude, area of triangle =

    2

    1

    × base × altitude =30cm

    2

    =

    2

    1

    ×13× altitude =30

    = altitude =

    13

    30×2

    =4.61 cm

    So, altitude corresponding to largest side is 4.61 cm.

Leave an answer

Browse

14:4+1-6*5-7*14:3+5 = ? ( )